基于FlexRay总线的无人机飞行控制计算机

Flight Control Computer Based on FlexRay Bus for UAV

为解决CAN总线通信带宽受限问题,设计基于FlexRay总线无人机飞行控制计算机。通过研究飞行控制计算机的网络结构和内部通信机制,完成样例计算机硬件平台、内部通信方案设计,实现内部通信软件的开发,并以实例进行通信测试与结果分析。结果表明:FlexRay总线相对CAN总线在实时性、通信速率和效率上具有优越性,能满足样例飞行控制计算机内部信息交互的实时性和数据量的要求。

For the problem that CAN （controller area network） bus communication bandwidth is limited, a new bus is introduced and a uninhabited aerial vehicle （UAV） flight control computer is designed based on the FlexRay bus. By studying the network structure and internal communication mechanism of the flight control computer, the design of computer hardware platform, internal communication data frame format and synchronization mechanism are completed, and the internal communication software is developed. Actual test proves that FlexRay bus has great advantages over CAN bus in real time, communication speed and efficiency, which satisfies the requirements of real-time information exchange and huge data quantity inside the sample flight control computer.